CN201690357U - Intelligent power supply under single-phase/three-phase multicircuit control - Google Patents
Intelligent power supply under single-phase/three-phase multicircuit control Download PDFInfo
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- CN201690357U CN201690357U CN2010201540894U CN201020154089U CN201690357U CN 201690357 U CN201690357 U CN 201690357U CN 2010201540894 U CN2010201540894 U CN 2010201540894U CN 201020154089 U CN201020154089 U CN 201020154089U CN 201690357 U CN201690357 U CN 201690357U
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Abstract
The utility model discloses an intelligent power supply under the single-phase/three-phase multicircuit control for starting, which comprises an AC control module, a signal detecting and conditioning module, a microcontroller module and a control software thereof. Three signal detecting and conditioning modules can be used for sampling and preprocessing the three-phase AC signal, generating the analog voltage and digital voltage and sending to a microcontroller for judging the AC status. The sequential start and stop of the multicircuit single-phase/three-phase AC are realized according to the timing requirement under the control of a load power supply, the running time can be set and the running can be controlled through a keyboard, the three-phase AC is detected, the power supply is cut off in case of overvoltage and undervoltage, phase failure and overheating, and the fault is recorded.
Description
Technical field
The utility model relates to a kind of intelligent electric power unit that is used for single-phase/three-phase multichannel controlled starting, belongs to power technique fields.
Background technology
In industry spot, particularly three phase alternating current motor uses more occasion, requirement according to technology controlling and process, power consumption equipment needs to start in a certain order one by one, just requiring need be according to regular hour order power supply and outage with electric loading, and sequence starting or the time requirement that stops are various, there are the strict and loose different differences that interval length is also arranged in the time interval regularly, whether require multiple-way supply etc., the accuracy height that this has not only increased monitor staff's workload but also has required the monitor staff to operate in addition.Except power consumption equipment on request the sequence starting; monitoring to power source performance also is an important requirement; not only under situations such as overtension is low excessively, electric current is excessive to load protection; also want and also can implement protection in phase shortage, phase sequence mistake, when overheated power supply and load; load works long hours and may damage load when the over-and under-voltage state for single phase poaer supply; the three phase electric machine even load is damaged when phase shortage, overheated operation for a long time easily, and these situations have the necessity of protection very much.At present the control mode of this class power consumption equipment mainly contains the nonshared control unit control mode that control mode and industrial system based on PLC that low-voltage devices such as circuit breaker, contactor, relay constitute carry.The shortcoming of these control modes mainly be can't revise its internal structure or revise complicated, cost is high, can't move, be difficult for observing power supply the real time execution situation, can't record trouble etc. deficiency.Therefore need a kind of intelligent power display power supply state in real time, just often can start by the road at power supply according to predefined procedure, can cut off the electricity supply and record trouble at the alternating current of input when not normal (when situations such as power supply over-and under-voltage, overcurrent, overheated, phase shortage misphase occur) again.
The utility model content
Goal of the invention: the utility model purpose is to provide and overcomes above deficiency, can realize the power supply of sequential control start and stop.Sequential according to power supply control requires to realize the sequence starting power supply of multichannel single-phase/three-phase alternating current and stop power supply, can be provided with and control operation to running time, over-and under-voltage threshold value by keyboard, detection to alternating current, cut off power supply at over-and under-voltage, phase shortage, when overheated, and record trouble.
Technical scheme: in order to realize above purpose, the intelligent power of single-phase/three-phase multichannel controlled starting described in the utility model, it is characterized in that: comprise alternating current control module, input and conditioning module, micro controller module and Control Software thereof, alternating current is imported this intelligent power and is divided into two-way: one road input AC electric control module; One the tunnel through input and conditioning module sampling alternating current information and do preliminary treatment and send into micro controller system, judges that through micro controller system the back controls the alternating current control module, and another road alternating current can be switched on or switched off with load.
When input voltage is three-phase alternating current, comprise that three input and conditioning module constitute three-phase alternating current signals sampling and preliminary treatment.
The operation principle of alternating current control module:, make the controlled adhesive of main contacts of A.C. contactor reach the purpose of control load power on/off by the coil electricity of the relay contact control A.C. contactor of micro controller module control.
The operation principle of input and conditioning module: the alternating current testing circuit that constitutes by input and conditioning module, three-phase alternating current by transformer coupled acquisition step-down, the alternating current of this step-down merge after by rectification as the direct-current working volts+12V of signal conditioning circuit in micro controller module and this module and+5V, in addition the alternating current of this step-down after dividing potential drop decay as the input signal of signal conditioning circuit, obtained after the processing and input AC corresponding analog signals of electricity and digital quantity signal, these signals are admitted to micro controller module and detect.
The operation principle of micro controller module: comprise DC power supply circuit, microcontroller, LCD LCD circuit, keyboard circuit, clock circuit, multicircuit relay control circuit, RS485 interface circuit, under the software support, finish control data setting, test result demonstration, operation control startup.
Beneficial effect: compared with prior art; the intelligent power that is used for single-phase/three-phase multichannel controlled starting described in the utility model is finished the order power supply of multichannel single-phase/three-phase load; save electric energy; the safety of protection power consumption equipment; control data is provided with flexible, highly versatile; numerical value and state intuitive display are convenient to move.
Description of drawings
Fig. 1 is a system block diagram of the present utility model.
Fig. 2 is an alternating current control module schematic diagram of the present utility model.
Fig. 3 is input of the present utility model and conditioning module schematic diagram.
Fig. 4 is a micro controller module block diagram of the present utility model.
Fig. 5 is power circuit principle figure in the micro controller module of the present utility model.
Fig. 6 is multicircuit relay circuit theory diagrams in the micro controller module of the present utility model.
Embodiment:
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only be used to the utility model is described and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
In Fig. 1, three-phase alternating current is imported this intelligent power and is divided into two-way.One the tunnel through input and conditioning module 2 sampling alternating current information and do preliminary treatment and send into micro controller system 3, judge that through micro controller system the back controls alternating current control module 1, and another road alternating current can be switched on or switched off with load.
In Fig. 2, ac contactor coil 4 power supplies are subjected to the control of relay R L1 normally opened contact 5, and relay R L1 normally opened contact is by control of the microprocessor in the micro controller module 3 and driving.Normally do not have then relay R L1 normally opened contact 5 closures of not normal phenomenon such as over-and under-voltage when the three-phase alternating current electricity condition, connect the voltage of ac contactor coil 4, make A.C. contactor main contacts 6 closures, connect three-phase alternating current and give load.The utility model uses the rated voltage of ac contactor coil to be the 220V alternating voltage, if the power difference of load can be changed the A.C. contactor of corresponding rated current.
Fig. 3 is that the utility model is gathered the detection of a cross streams signal of telecommunication and the circuit theory diagrams of conditioning module, 2 three of this input and conditioning module are used in the ac signal collection of three-phase alternating current, in Fig. 3, R1, R3, R4 are as long as weld one, and be corresponding with a cross streams electricity of gathering.If the load of using all is a single-phase load, then only uses a block signal to detect and get final product with conditioning module 2.Alternating current is through the step-down of T1 transformer, and the signal that D2, D3, D5, D6 constitute behind the bridge rectifier is sent into back level Signal Pretreatment, isolates the power circuit of sending in the micro controller module 3 through the D1 rectification in addition and produces 12V and 5V direct current.Signal Pretreatment is that the circuit of core constitutes by U1 amplifier and U2 comparator mainly, and U1A constitutes emitter follower, U2A constitutes amplifier, produces 2 road aanalogvoltages (UA1, UA2), and one the tunnel reflects bridge rectifier instantaneous voltage, another road reflecting voltage effective value.U3 is the TA76431 integrated stable voltage circuit, and U2 is a comparator, and ac signal produces 2 way word voltages (UD1, UD2) behind comparator.2 road aanalogvoltages and 2 way word voltages all are connected to the input of microcontroller, three-phase alternating current just has 6 road aanalogvoltages and 6 way word voltages to be input to microcontroller, can judge the size of alternating current voltage value according to aanalogvoltage, digital voltage can be judged phase place, the frequency of alternating current.
In Fig. 4, micro controller module mainly is made up of power circuit, liquid crystal display circuit LCD, keyboard circuit, clock circuit, RS485 interface circuit, temperature sensing circuit, multicircuit relay control circuit.The schematic diagram of power circuit as shown in Figure 5, multicircuit relay control circuit schematic diagram as shown in Figure 6, keyboard is made as independent button, clock circuit adopts the integrated circuit (IC) chip of serial communication bus, temperature sensing circuit is 1-wire digital temperature sensor 18B20.Microcontroller adopts the ATmega128 single-chip microcomputer, PF mouth, PE mouth that socket J2 acquisition analog and digital signal from Fig. 3 and temperature sensor signal are input to microcontroller, carry out AD conversion and electrical level judging, if there is the situation of over-and under-voltage, overheated, phase shortage misphase to occur, with wrong number record in the EEPROM of microcontroller.In addition, microcontroller carries detection of power loss and the programmable watchdog timer makes the working stability of system reliable.
In Fig. 5, from detect with conditioning module in the voltage that obtains of D1 as the input voltage of power circuit, through the D.C. regulated power supply of voltage stabilizing circuit generations+12V and+5V, confession detection and conditioning module and micro controller module work.
In Fig. 6, the PB mouth of microcontroller control multicircuit relay RL1, RL2, RL3, RL4 coil electricity; When relay R L1 coil electricity, then RL1 contact 5 is connected, the final control that realizes the load alternating current power supply.Drawn in Fig. 6 control circuit of No. 4 relays when load number surpasses 4 the tunnel, can continue to increase the way of control relay.
Software of the present utility model mainly is provided with module, operation control module, failure logging and display module by keyboard key assignments module, display module, clock module, ADC module, phase module, parameter and forms.Main program at first carries out initialization after beginning to carry out, and the show state value is read in key assignments then and judged whether that parameter setting, fault inquiry still start operation, changes corresponding function then over to and carries out.
Claims (2)
1. the intelligent power of single-phase/three-phase multichannel controlled starting, it is characterized in that: comprise alternating current control module (1), input and conditioning module (2), micro controller module (3) and Control Software thereof, alternating current is imported described intelligent power and is divided into two-way: one road input AC electric control module (1); One the tunnel through input and conditioning module (2) sampling alternating current information and do preliminary treatment and send into micro controller system (3), judges that through micro controller system (3) back control alternating current control module (1) and load are switched on or switched off.
2. the intelligent power of single-phase/three-phase multichannel controlled starting as claimed in claim 1 is characterized in that: comprise that three input and conditioning module (2) constitute three-phase alternating current signals sampling and preliminary treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201540894U CN201690357U (en) | 2010-04-09 | 2010-04-09 | Intelligent power supply under single-phase/three-phase multicircuit control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201540894U CN201690357U (en) | 2010-04-09 | 2010-04-09 | Intelligent power supply under single-phase/three-phase multicircuit control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201690357U true CN201690357U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201540894U Expired - Fee Related CN201690357U (en) | 2010-04-09 | 2010-04-09 | Intelligent power supply under single-phase/three-phase multicircuit control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201690357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037749A (en) * | 2013-03-04 | 2014-09-10 | 深圳市大族激光科技股份有限公司 | AC power supply control system |
| CN117375395A (en) * | 2023-12-04 | 2024-01-09 | 上海维安半导体有限公司 | Under-voltage locking circuit |
-
2010
- 2010-04-09 CN CN2010201540894U patent/CN201690357U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037749A (en) * | 2013-03-04 | 2014-09-10 | 深圳市大族激光科技股份有限公司 | AC power supply control system |
| CN104037749B (en) * | 2013-03-04 | 2017-04-12 | 大族激光科技产业集团股份有限公司 | AC power supply control system |
| CN117375395A (en) * | 2023-12-04 | 2024-01-09 | 上海维安半导体有限公司 | Under-voltage locking circuit |
| CN117375395B (en) * | 2023-12-04 | 2024-04-05 | 上海维安半导体有限公司 | Under-voltage locking circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20160409 |